:root {
  --bg: #020617;
  --panel: rgba(255, 255, 255, 0.03);
  --panel-strong: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.10);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.62);
  --accent1: #22d3ee;
  --accent2: #a78bfa;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.page-bg { position: fixed; inset: 0; overflow: hidden; pointer-events: none; }
.blob { position: absolute; border-radius: 999px; filter: blur(120px); }
.blob-1 { left: -8rem; top: -5rem; width: 26rem; height: 26rem; background: rgba(34,211,238,0.12); }
.blob-2 { right: -10rem; top: 10rem; width: 34rem; height: 34rem; background: rgba(167,139,250,0.12); filter: blur(140px); }
.blob-3 { left: 35%; bottom: 8rem; width: 22rem; height: 22rem; background: rgba(59,130,246,0.10); }
.container { position: relative; max-width: 1280px; margin: 0 auto; padding: 2rem 1.5rem 2.5rem; }
.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 2.5rem; align-items: end; padding: 2rem 0 5rem; }
.hero-copy { max-width: 48rem; }
.brand-logo { height: 2rem; width: auto; opacity: 0.9; }
h1 { margin: 2rem 0 1.5rem; font-size: clamp(3rem, 8vw, 5.5rem); line-height: 0.95; letter-spacing: -0.03em; }
h2 { margin: 0 0 1.25rem; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.05; }
h3 { margin: 0; font-size: 1.25rem; }
.signals h2 span { color: var(--muted); }
.hero-text, .card p, .detail-card p, .form-card p, .step p { color: var(--muted); }
.hero-text { max-width: 42rem; font-size: 1.2rem; line-height: 1.9; margin: 0 0 2.5rem; }
.cta-button, .submit-button {
  border: 0; border-radius: 999px; padding: 1rem 1.75rem; font-size: 1rem; font-weight: 600; color: white; cursor: pointer;
  background: linear-gradient(90deg, var(--accent1), #38bdf8, var(--accent2));
}
.email-button {
  display: block; text-align: center; text-decoration: none; border-radius: 999px; padding: 1rem 1.75rem; font-size: 1rem; font-weight: 600;
  color: rgba(255,255,255,0.85); border: 1px solid var(--border); background: var(--panel);
}
.side-panel, .card, .signals-panel, .form-card, .detail-card {
  border: 1px solid var(--border); background: var(--panel); border-radius: 2rem;
}
.side-panel { padding: 1.5rem; background: linear-gradient(180deg, rgba(15,23,42,0.82), rgba(17,24,39,0.55)); }
.eyebrow { margin: 0 0 1rem; font-size: 0.8rem; letter-spacing: 0.3em; text-transform: uppercase; color: rgba(255,255,255,0.4); }
.steps { display: grid; gap: 1rem; }
.step { display: flex; align-items: center; gap: 1rem; }
.step-num { width: 2.5rem; height: 2.5rem; display: grid; place-items: center; border-radius: 999px; background: rgba(255,255,255,0.10); font-size: 0.95rem; }
.beliefs, .signals, .benefits, .program-details, .apply-section { padding-bottom: 5rem; }
.signals { padding-bottom: 7rem; }
.cards, .details-grid { display: grid; gap: 1.5rem; margin-top: 2.5rem; }
.three-col { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.four-col { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.details-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { padding: 1.5rem; }
.card p { margin-top: 0.75rem; line-height: 1.75; }
.signals-panel { padding: 2rem 2.5rem; margin-top: 3rem; backdrop-filter: blur(10px); background: var(--panel-strong); }
.logos { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 3.5rem; opacity: 0.88; }
.logo-wrap { display: flex; align-items: center; justify-content: center; padding: 0.5rem; }
.logo { height: 3.5rem; width: auto; object-fit: contain; }
.logo-stanford { height: 5rem; }
.logo-invert { filter: invert(1); opacity: 0.9; }
.detail-card { padding: 1.75rem; }
.detail-pill {
  display: inline-block; margin-bottom: 1rem; padding: 0.4rem 0.8rem; border-radius: 999px;
  background: linear-gradient(90deg, rgba(34,211,238,0.20), rgba(167,139,250,0.20));
  color: #bae6fd; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase;
}
.detail-card h3 { font-size: 2rem; line-height: 1.1; }
.detail-card p { margin-top: 0.75rem; line-height: 1.75; }
.form-card { max-width: 42rem; margin: 0 auto; padding: 2.5rem; }
.form-card p { margin: 0.75rem 0 0; }
form { margin-top: 2rem; display: grid; gap: 1.25rem; }
label { display: grid; gap: 0.5rem; color: rgba(255,255,255,0.6); font-size: 0.95rem; }
input {
  width: 100%; border: 1px solid var(--border); background: rgba(0,0,0,0.30); color: white;
  border-radius: 0.9rem; padding: 0.95rem 1rem; outline: none;
}
input:focus { border-color: var(--accent1); }
.mail-help.hidden { display: none; }
.mail-help { font-size: 0.95rem; line-height: 1.6; }
.mail-help a { color: #67e8f9; }
@media (max-width: 1100px) { .four-col, .details-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 980px) { .hero, .three-col, .four-col, .details-grid { grid-template-columns: 1fr; } }